To determine the percentage composition of calcium in calcium phosphate, we first need to find the molar mass of the compound.
The molar mass of calcium phosphate is calculated as follows:
3(Ca) + 2(P) + 8(O)
= 3(40.08) + 2(30.97) + 8(16.00)
= 120.24 + 61.94 + 128.00
= 310.18 g/mol
Next, we determine the molar mass of calcium in calcium phosphate:
40.08 g/mol
To find the percentage composition of calcium in calcium phosphate, we divide the molar mass of calcium by the molar mass of the compound and multiply by 100:
(40.08 g/mol / 310.18 g/mol) x 100 = 12.92%
Therefore, the percentage composition of calcium in calcium phosphate is approximately 12.92%.
Find the percentage composition of calcium in the following compound, round to the nearest hundredth of a percent.
calcium phosphate, Ca3(PO4)2
(2 points)
1 answer